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Related Concept Videos

Inflammatory Bowel Disease V: Surgical Management01:21

Inflammatory Bowel Disease V: Surgical Management

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Surgical interventions for inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, are essential in managing symptoms and addressing complications. The selection of surgical procedures is contingent upon the specific conditions and complications that stem from these illnesses.
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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

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Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
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Related Experiment Video

Updated: Jul 19, 2025

Clinical Application of Single-Surgeon, Three-Port, Laparoscopic Resection for Colorectal Cancer with Natural Orifice Specimen Extraction
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[Clinical application and standardized implementation of intersphincteric resection].

P Chi1, X J Wang1

  • 1Department of Colorectal Surgery, Union Hospital, Fujian Medical University, Fuzhou 350001, China.

Zhonghua Wei Chang Wai Ke Za Zhi = Chinese Journal of Gastrointestinal Surgery
|August 15, 2023
PubMed
Summary
This summary is machine-generated.

Intersphincteric resection (ISR) offers sphincter preservation for low rectal cancer. This review details ISR

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Area of Science:

  • Colorectal Surgery
  • Surgical Oncology
  • Gastroenterology

Background:

  • Intersphincteric resection (ISR) is a key sphincter-preserving surgery for low rectal cancer.
  • Standardized ISR implementation requires understanding pelvic anatomy and precise dissection planes.
  • Chinese expert consensus guides current ISR clinical applications.

Approach:

  • Review of pelvic anatomy relevant to ISR, distinguishing hiatal and anococcygeal ligaments.
  • Identification of the neurovascular bundle anterior to the levator hiatus for dissection.
  • Analysis of ISR indications, contraindications, and neoadjuvant treatment considerations.

Key Points:

  • ISR indications include early-stage and selected advanced low rectal cancers post-neoadjuvant therapy.
  • Contraindications for ISR are signet ring cell, mucinous adenocarcinoma, and undifferentiated carcinoma.
  • Neoadjuvant chemoradiotherapy may impact postoperative anal function, and surgical approach selection is critical for oncological safety and function.

Conclusions:

  • Maximal preservation of rectal walls and anal canal during ISR is vital for optimal postoperative anorectal function.
  • Anastomotic complications and low anterior resection syndrome (LARS), affecting over 40% of patients, require focused management and rehabilitation strategies.
  • Further research into LARS management and rehabilitation is necessary.